Map List

Draw a map using openlayers TODO describe difference with standard map

Supported types

• Geometry

PostGIS enabled database is required

Map Widget customization

Map widget can be very complex and it’s hard to cover all use cases with a generic configuration, Box provides a generic configuration that is mainly tought as a Demo, for real implementation the widget can be customized at two level:

1. System-wise, adding a config entry map.options with the JSON configuration
2. Params field in Interface builder fields, adding the specific JSON configuration of the field definition of the form

The two configuration work in a hierarchical fashion, we take advantage of the JSON mergability so the form-filed specific configuration overrides the config level configuration

Configuration JSON

Here an example of the configuration Json with Swiss LV05 coordinates system and supporting points or polygons

{
    "features": {
        "point": true,
        "multiPoint": true,
        "line": false,
        "multiLine": false,
        "polygon": true,
        "multiPolygon": true,
        "geometryCollection": false
    },
    "projections": [
        {
            "name": "EPSG:21781",
            "proj": "+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 +k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel +towgs84=674.4,15.1,405.3,0,0,0,0 +units=m +no_defs",
            "unit": "m",
            "extent": [
                485071.54,
                75346.36,
                828515.78,
                299941.84
            ]
        },
        {
            "name": "EPSG:2056",
            "proj": "+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 +k_0=1 +x_0=2600000 +y_0=1200000 +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs ",
            "unit": "m",
            "extent": [
                2485071.58,
                1075346.31,
                2828515.82,
                1299941.79
            ]
        }
    ],
    "defaultProjection": "EPSG:21781",
    "baseLayers": [
        {
            "name": "Swisstopo",
            "capabilitiesUrl": "https://wmts.geo.admin.ch/EPSG/21781/1.0.0/WMTSCapabilities.xml",
            "layerId": "ch.swisstopo.pixelkarte-farbe"
        },
        {
            "name": "SwissImage",
            "capabilitiesUrl": "https://wmts.geo.admin.ch/EPSG/21781/1.0.0/WMTSCapabilities.xml",
            "layerId": "ch.swisstopo.swissimage"
         }
     ]
}

Fields:

• features.point: enables POINT features
• features.multiPoint: enables MULTIPOINT features
• features.line: enables LINESTRING features
• features.multiLine: enables MULTILINESTRING features
• features.polygon: enables POLYGON features
• features.multiPolygon: enables MULTIPOLYGON features
• features.geometryCollection: enables GEOMETRYCOLLECTION features
• defaultProjection: the default projection of the map
• projections.0.name: name of the projection (usually in the format EPSG:<number>)
• projections.0.proj: proj4 definition string (can be found in https://epsg.io/ )
• projections.0.unit: unit of measure
• projections.0.extent: vertex of the map
• Optional baseLayers: array of object, if not defined Openstreetmap is used as baselayer
  • name: name of the layer (it will appear on the UI)
  • capabilitiesUrl: WMTS capabilities URL
  • layerId: name of the layer
• Optional precision: precision of points
• Optional formatters: custom feature formatters, in the I18n.Label format i.e. [{"lang": "id", "label": "Punto %x %y"}]
  • Optional point
  • Optional multiPoint
  • Optional line
  • Optional multiLine
  • Optional polygon
  • Optional multiPolygon
• Optional enableSwisstopo enable swisstopo integration (i.e. location search)

Key	Value	Default
mobileHeight	Height of the map on mobile	250
desktopHeight	Height of the map on mobile	400
full	full height	false
topElement	Show checkbox on the previous element	false